If you lift a 20kg barbell 4.0 meters off the ground ,how much work did you do ?

Pretty sure this should be 80 "J".

Ifound this on google “your outer ear collects sound waves and reflects them into a tiny tube called the ear canal. at the end of the ear canal is a thin, skin-like membrane stretched tightly over the opening, called the eardrum.” i hope this you for what your looking for